Drill



A. B. CHESTER.

DRILL. APPLICATION FILED FEB. 28. 1920. RENEWED sEPT. 6, 1922'.

tmmmam Emma 001524 1922.

flsizmcad ,5. 6/2 ester INVENTOR ATFORNEY nection Patented tli ct. 2 1i,

hi t. ti-

ndie DRILL.

Application filed February '28, 1320, Serial No. 352,001.

To aZZ whom it may concern:

Be it known that I, .ASHMEAD B. Crrusrnn, a citizen of the UnitedStates, residing at Jacksonville, in the county of Morgan and State oflllinois,-have invented new and useful improvements in Drills, of vhichthe following is a specification.

This invention relates to a drill and has for its primary object theconstruction of a device of this character of simple. inexpensiveconstruction, which may be readily connected or disconnected from anopekative position.

An object of the invention is to provide a more substantial drillapparatus at less expense.

A feature of my invention isthe novel manner of arranging the parts sothat the feed screw as well as the drilling mechanism may be operatedwithout the operator changing his position.

With these and other objects in View the invention will he betterunderstood from the following detailed description taken in conwith theaccompanying "drawing wherein- Fig. is a side elevation of theapparatus. l ig. 2 is a detailed view illustratingthe rib. i

Fig. 3 is a sectional view of the bracket. Fig. 4 is a plan view of thefoot.

igain referring; to the drawing illustrat ingone of the many forms inwhich my invention may be constructed the numeral 1 designates a framehavi 11g at one enda. head 2 supporting the drilling); mechanism. Theother end of the frame is provided with a tapering dovetail shaped rib 3for detachable engagement in a correspondingly shaped recess 4: in abracl-ret or plate This bracket is bolted to astationary support asindicated at 6. From this constritict-ion it will be seen that thefran'ie may be quickly arranged in place and just as readily dc tached,and, by u'oviding a number of brackets at different points in the shopit will be readily seen that the drill. may be conveniently used atdiii'erent points. The

screw 11. a This of the screw.

Renewed September 6, 1922. Serial no. 586,537. guide bar 7 has itssecured to the frame detachably connected 8 of a shape stationary in theuse upper end detachably while the lower end is to a foot 8. This footand size to bear against the support as indicated at 9 so that of thedrill the guide bar 7 will be substantially braced so as to be preventedI from being subject to strains. is also provided the reception of Thisfoot 8 with a depression 10 for the lower end of the feed feed screw 11is reduced so as to form a shoulder 12 engaging a portion of the frame 1so as to prevent disliilacement A hand wheel 13 is connected to thefeed. screw for operating the same.

(lo-operating with the feed screw is a table 141 that is guided bar 7.

it is. of course, to be understood that the invention may be constructedin various other manners and the parts associated in in its movement bythe different relations'and. therefore, 1. do not desire to be limited.in any manner exceptas set forth in the claims hereunto appended.

Having thus described my inventionwhat I claim is- 1. In a device of thecharacter described a fran'ie havinga tapering dovetail shaped rib. aplate for attaching to a stationary support and having' a recess for thereception of said rib. a guide bar having its upper end detuchablyconnected to the frame, and a foot detachably connected to the lower endof the bar and shaped to bear against the stationary support forsteadying the bar.

2.. A drill comprising a frame, drilling means arranged at one end ofthe frame, a brackethavinp; a detachable tongue and groove connectionwith the frame, a guide bar depending from the frame. a foot screwed tothe bar andshaped to bear against the stationary support, a tableslid-ably guided by the bar, and a feed screw for rotatable connectionwith the frame, a screw thread ei'ig'a ement with the table and havinga. bearing in said foot.

In testimony whereof I aifix ASHMEAD B.

my signature.

